I had applied through an employ referral. The recruiter contacted me within a week, to identify what roles I would be suitable for. Within two working days, I was invited for a phone screen. The phone screen was conducted by an engineer. The interviewer asked me about my resume and a simple coding question (sieve of erastothenes). I expected them to get back within a week, but to my surprise, the recruiter got back to me within a few hours, inviting me onsite for an interview. The onsite interview began initially with a demo of the product. This demo is really helpful in formulating questions for the later rounds ;-) Coming to the technical rounds, the first of my technical rounds was a code review. The same Triangle class as the previous posters. This was followed by a coding/algorithms round. In this round, I was asked a "starter" question, to ease me into the process. The question was to pop the minimum from the stack. This was followed by a question, explained in the next section. To answer the same we required to implement disjoint sets. I told the interviewers that I shall use a height balancing BST (like AVL). This I said, would reduce the worst case search/insert/delete to O(log n). The interviewers probably misunderstood me, and maintained that the worst case height is O(n) for a BST (can't be denied :-) ) . This was followed by a system design question, where I had to design a system for expressions (expr = literal|expr + expr|-expr) without wasting effort on parsing. I tried to impress them with class diagrams. BIG mistake! Just write your classes and get done with it! This was followed by a round with the hiring manager. This round is essentially a resume review, and multiple technical discussions. Finally, I was taken out for lunch by a member of the Security Assurance team. Having a background in security, he talked about the team and opportunities in them. Finally, I had a Behavioral interview with the recruiter. They again promised to get back to me within a week, and to my surprise got back in two days!!! Alas, it was a reject, but overall an enjoyable and quick interview experience.